A "Gauged" $U(1)$ Peccei-Quinn Symmetry

Hajime Fukuda, Masahiro Ibe, Motoo Suzuki +1

The Peccei-Quinn (PQ) solution to the strong $CP$ problem requires an anomalous global $U(1)$ symmetry, the PQ symmetry. The origin of such a convenient global symmetry is quite pu…